Scrutinizing Dynamic Cumulant Lattice Boltzmann Large Eddy Simulations for Turbulent Channel Flows

Large-eddy simulations of turbulent reacting stagnation point flows

A methodology for solving unsteady premixed turbulent flame propagation problems in high Reynolds number (Re), high Damkohler number (Da) spatially evolving flows is developed. The method is based on Large-Eddy Simulation (LES) with a subgrid combustion model based on the Linear-Eddy Model (Kerstein, 1991). An inter-LES cell burning mechanism has been added to the present formulation to account...

Large Eddy Simulations of Two-Phase Turbulent Flows"

A two-phase subgrid combustion model has been developed for large-eddy simulations (LES). This approach includes a more fundamental treatment of the effects of the final stages of droplet vaporization, molecular diffusion, chemical reactions and small scale turbulent mixing than other LES closure techniques. As a result, Reynolds, Schmidt and Damkohler number effects are explicitly included. Th...

Large-Eddy Simulations of Turbulent Flows, from Desktop to Supercomputer

In this paper, a general introduction to the large-eddy simulation (LES) technique will be given. Modeling and numerical issues that are under study will be described to illustrate the capabilities and requirements of this techniques. A palette of applications will then be presented, chosen on the basis both of their scientific and technological importance, and to highlight the application of L...

GPU-Accelerated Large-Eddy Simulation of Turbulent Channel Flows

Large Eddy Simulation for Turbulent Flows

This thesis is concerned with one of the most promising approaches to the numerical simulation of turbulent flows, the Large Eddy Simulation (LES) in which the large scales of the flow are calculated directly, while the interactions with the small scales are modeled. Specifically, we analyze two new LES models, introduced in [30] and [51]. First, we sketch the derivation of the LES model introd...